Molding apparatus.



PATENTED DEC. 24, 1907. A. G. ROGERSON. MOLDING APPARATUS, APPLICATION FILED NOV. 17, 1905.

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wgzaa I PATENTED DEC. 24, 1907.

A. O. ROGERSON.

MOLDING APPARATUS.

APPLIOATION FILED NOV. 17,1905.

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Um ED STATES PATENTOFFICE.

ALBERT C. ROGERSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO AUTOMATIC MOLDING MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

I MOLDING APPARATUS.

To all whom it may concern:

Be itknown that I, ALBERT C. ROGERSON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Im provement in Molding Apparatus, of which the following is a specification.

My invention relates particularly to apparatus for use in preparing molds, cores and forms for use in casting metals; and my primary object is to provide simple and efficient means for more expeditiously and in an improved manner performing this task.

The invention is illustrated in its preferred embodiment in the accompanying drawings, in Which I Figure 1 is a viewpartly in section and partly in elevation of my improved apparatus; Fig. 2, a broken section taken as indicated at line 2 of Fig. 1; Fig. 3, a broken section taken as indicated at line 3 of Fig; 2 and showing an adjustable sand-impelling device, or packer, employed; Fig. 4, a section taken as indicated at line 4 of Fig. 3; and Fig. 5, a section taken as indicated at line 5 of Fig. 4. Y

In the construction illustrated, the apparatus comprises a hopper A for the molding sand; a horizontal screw conveyer B receiving the material from said hopper through an interposed reciprocating screen, or sifter, B actuated by a shaft B an endless inclined elevator C receiving the material from the conveyer B; a horizontal screw conveyer D receivin the material from the elevator C; a shifta le impelling device, or packer, E, receiving the material from the conveyer D; aflask, F, into which the sand is discharged, with great force, fromthe packer; and driving means for the various operative parts, which will be presently described.

The details of construction may be variously modified and various parts may be omitted, according to circumstances and conditions. The apparatus, as illustrated, however, includes means for receiving the sand from the molds after use, sifting it, elevating it, and injecting it-at high velocity and with great force of impact into the mold-box.

The essential features of the invention consists of a power actuated device, herein exemplified in the form of a packer belt, by means of which the sand is projected with Specification of Letters Patent.

Application filed Novemben17. 1905. Serial No. 287,806. I

ofi a and a to the lover a.

Patented Dec. 24, 1907.

a universally movable chute through which the sand is carried thereby, said projecting device delivering such sand directly into the mold box without previous contact with any surface which could possibly hinder or alter its speed of delivery the chute serving merely asa supporting frame for the projector and as a shield to prevent the escape of sand from thepath thereof thus insuring that all sand is de-.

livered to the mold box with equal force and further enabling the same to be projected in any desired direction-so as to enable every portion of the mold box to be packed with uniform density and the sand to be uniformly and evenly distributed.

In order to secure the best results it ls packing. force into the mold box and which said device is disposed in and movable with necessary that the sand be delivered in very 7 small quantities following'each other in rapid succession, it being observed that delivery thereof in large lumps or batches. causes unevenness and lack of uniformity in density owing to the fact that such large lumps or batches are shattered by the impact and acoordingly pack more firmly in the middle than at the edges.

The operative parts, 1n the construction shown, are 0 erated from a shaft 0, which is joined by be ts a, a a respectively, to the shaft B actuating the screen, a shaft a actu-' ating the conveyer B, and a shaft a from which the elevator C, conveyer D and packer E are. actuated. The shaft a is joined by a belt a to a shaft of which is connected by gears a with the actuating shaft of the elevator C. The shaft (i is equipped at one end with a friction diska, which communicates motion, through a shiftable friction disk at, to a shaft a parallel with and joined by a belt o to the shaft a of the conveyer D. The shaft a has ordinary tight and loose pulleys a, indicated by dotted lines, for receiving the belt a and the shaft a is equipped w'th tight and'loose pulleys a.- for receiving the belt a". The belts a and a are supplied,

respectively, with shifters'a", a", of ordinary construction. These shifters and the friction disk (1 are actuated by a lever a joined by a link (L to a hand-lever a. The belt shifters are joined, by connections, a, a,

are common and unimportant.

The details I by a shaft 6 forming a part of the universal The 0 eration will be readily understood.

" the packer injected with big impactive force,

for ordinary'work, are supported on trucks,

or'ramming. The work is done in a small located with reference to the packer, so that vas, e jto the adjacent end of the'conveyer .the adjustment of which,-as by means of bolts g, serves to regulate theiheight of the tern, no matter how inaccessible the recesses '.of the pattern under known methods of The packer E 00111 rises a frame 0 suspended by a universa connection a, from the hanger e and an endless belt 6 passing about pulleys e at the upper and lower ends of the frame. The upper pulley is carried joint; and said shaft is equipped with a conical pulley e with which is connected a rope belt a driven by a pulley e on the shaft a The belt e works in channels e", e with which thej frame e is provided, and is. equipped with blades, or cleats, e, which servetoengage the molding material. The channel e constitutes a chute or casing through which the sand is impelled by the blades and which serves to confine the sand and maintains the same within the path of said blades between the points of admission anddischarge of said sand irrespective of the position of said casing. This chute or casing is joined by a flexible connection, such as can- I). The connection is such asto form a assage without interfering with the free swinging movement ofthe packer. The belt a is controlled by a shifter 6 by means of which The packer and attendant parts are shown supported on a vertically ad ustable frame G,

free end of the packer, thereby accommodatthe device .to flasks of varying heights.

he mo ding materialis sifted, transferred through the conveyer B to the elevator C,

raised by the elevator C to the conveyer D,

thence transferredto'the acker E, and by in a 'ra id succession of'short streams, into the flas or mold-box F. The mold-boxes (not shown mounted on a track passing. beneath the" lower end of the packer. The attendant swings the packer, at will, to directthe issuing sand to all parts of the moldbox. The packer-belt e operates at high velocity, which may be changed to suit conditions, and experience has demonstrated, will operate to thoroughly pack the mold-' box, with any desired degree of firmness, obviating all necessity for stamping, pressing frabtion of the time heretoforerequired, and the material is caused to conform, with the utmost fidelity, to the outlines of the pattreatment. As has been stated, the operation of the conveyers and elevator is con-' trolled by the lever a, which is conveniently the delivery of sand can be controlled at will. So, also, the speed of the packer-belt is conshifter e As stated, the height of. the packer with relation to the mold-box may be adjusted at will.

While apparatus constructed in detail as described is admirably adapted to the purpose, no limitation in matters of detail is to be understood from the description. It is expected that the free end of the movable packer may be pointed in any direction, and it is only for illustration that downward, as distinguished from lateral, delivery, is indicated.

What I regard as new, anddesire to secure by Letters Patent, is, I I

1. In molding apparatus, power actuated sand projecting means, a pivotally suspended frame carrying 'thesame, means for feeding sand into the path of saidprojecting taining the sand in such path between the points of admission and discharge thereof.

3. In moldingapparatus, power actuated sand projecting means, a pivotally suspende. frame carrying the same, means for feeding sand into the path of said projecting means, means for maintainingsaid sand in such (path-between thepoints of admission and 'scharge, and means for varying the speed of said projecting means. I

4. In molding apparatus, power actuated sand projecting means, a pivotally sus- V ,pended'uni'versally movable frame ca the same, means for feeding sand into the path of said projecting means, means for imaintaining said sand in such'p'ath between the points of admission and dlscharge, and means for varying the speed of said projectmg means. A

5. In molding apparatus, a suspended packer comprising a freely movable laterally shiftable casing, and power actuated sand projecting means disposed within said casing and serving to deliver the sand at high velocity into a mold box,

6. In molding apparatus, a suspended packer comprising a casing movable'laterally in all directions, and power actuated sand projecting means carried by said casing and movable therewith, said projecting means delivering the sand directly to a mold box.

v 7. In molding apparatus,;- a suspended packer comprising a casing movable laterally in all directions, and a traveling power actuated carrier carried by said casin and serving to imparthigh velocity to th project thesame with packing-forceinto a mold box.

trolled by the conveniently located belt- 8. In molding apparatus, a suspended ve sand to 90 p I path of said projector, and means 'for main- 7 I packer comprising a freely movable, laterally-' shiftable casing, and a moving endless packing belt moving Within said casing for imparting high-velocity to the molding ma- 5 terial.

9. In molding apparatus, a suspended acker comprising a casing freely movable aterally in all directions to enable it to be directed towards any part of a mold-box, and a suitably actuated packing belt moving within said casing and serving to impart high velocity to the molding material.

-10. In molding apparatus, the combination with a source of sand supply, of a packer comprising a swinging frame capable of swingin in all directions provided with a casing and equipped with pulleys, an endless paddle equipped belt supported on said pulleys and moving through said casing, and -means for actuating said belt.

11. In molding apparatus, the-combination with a source of sand supply, of a packer comprising a frame having a universal supporting joint and a pulley-equipped shaft at said joint, a pulley at the free end of the frame, a casing carried by the frame, an endless belt passing over said pulleys and moving through said casing and provided with paddles, and means for rotating said firstnamed shaft, for the purpose set forth.

12. In apparatus of the character set forth, the combination of a sifter, a substantially horizontal conveyer into which the sand is discharged by the sifter, an elc vator, a substantially horizontal conveyer receiving the material from the elevator, a packer-frame having a casing flexibly connected with said last-named conveyer, a packer-belt 'mounted on said frame and moving through said casing, and means for 40 actuating the operative parts.

13. In apparatus of the character set forth, the combination of a movable packerframe equipped with a casing, a packer-belt operatively mounted on said frame and moving in said casing, mechanism for delivering sand; to said casing and controlling means equipped with a handle located near said casing, whereby the operator may guide the packer and control the delivery of sand, for 52 the purpose set forth.

14. In apparatus of the character set forth, the combination of a packer mounted to permit it to swing, a conveyer serving to deliver material to the packer, an elevator 55 serving to deliver material to said conveyer, and common controlling means for said conveyer and elevator located adjacent to the packer within reach of an operatr'r guiding the packer.

. ALBERT O. ROGERSON. In the presence of L. HEISLAR, J. H. LANDES. 

